Why broadcasting channel public not working? Laravel

I use laravel 5.3

I make routes/channels.php like this :

Broadcast::channel('messages', function() {
    return true;

If I input the data cart and click submit, it will run this :
this.$http.post(window.BaseUrl + '/guest/add-notification', {cart_data: JSON.stringify(data)});

It will call function on the controller

The function like this :

public function addNotification(Request $request){
    $input = $request->only('cart_data');
    $data = json_decode($input['cart_data'], true);
    event(new CartNotificationEvent($data));

Then it will call event

The event like this :

namespace AppEvents;
use IlluminateBroadcastingChannel;
use IlluminateQueueSerializesModels;
use IlluminateBroadcastingPrivateChannel;
use IlluminateBroadcastingPresenceChannel;
use IlluminateBroadcastingInteractsWithSockets;
use IlluminateContractsBroadcastingShouldBroadcast;
class CartNotificationEvent
    use InteractsWithSockets, SerializesModels;
    public $data;
    public function __construct($data)
        $this->data = $data;
    public function broadcastWith()
        return [
            'message' => $this->data,
    public function broadcastAs()
        return 'newMessage';
    public function broadcastOn()
        return new Channel('messages');

On the client, I do like this :
.listen('.newMessage', (message) => {

When all the code is executed, I check on the console, the console.log not display

Why is it not working?

If I see the whole code that I make, it seems the process is correct


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Method 1

class CartNotificationEvent implements ShouldBroadcast is missing.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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